This is the full tab of Relient K's "Pressing On" off their "The Anatomy of Tongue In Cheek" CD put out by Goatee Records. This song is relatively easy besides the fast intro and sometimes random chords thrown in.I think i got most of it correct, except maybe the beginning of the prechoruse, so email me at [email protected] to comment or complain.
Song: Pressing On
Artist: Relient K
Album: The Anatomy of Tongue in Cheek 
Tabbed by: Dan Wilson ([email protected])

h= hammer
x= palm mute
c= clean
!= cut off sound
~= let ring

Intro
Guitar 1
E|--------------------------------|
B|--------------------------------|
G|-6------------3-----------------| 
D|-6-3h4-66-3-1-3-3h4-44-3-1------|
A|-4-----66-----1-----44----------|
E|-------44-----------22----------|

Guitar 2
E|--------------------------------|
B|--------------------------------|
G|-6666x--------------------------|
D|-6666x-6666x--8888x-4444--------|
A|-4444x-6666x--8888x-4444--------|
E|-------4444x--6666x-2222--------|
Play one time w/ only guitar one, then for play w/ guitar 2 for 3x

Verse
E|--------------------------------|
B|--------------------------------|
G|-6xxxx5xxxx5xxxx----------------|
D|-6xxxx5xxxx3xxxx4xxxx-----------|4x w/ the 4th one w/o any palm muting
A|-4xxxx3xxxx1xxxx4xxxx-----------|
E|----------------2xxxx-----------|
    
Chorus
E|-----------------------------------------|
B|-----------------------------------------|
G|-68xx68xx811xx811-6-6-6-6------------|
D|-68xx68xx811xx811-6-6-6-6-666666-----|Repeat 2 times
A|-46xx46xx69-xx69--4-4-4-4-666666-----|
E|------------------------------444444-----|
                        c c c c
After Second time, play this:
E|---------------------|
B|---------------------|
G|---------------------|
D|-444444-666xxx-------|
A|-444444-666xxx-------|
E|-222222-444xxx-------|
That leads to the Chorus, which is played exactly like the guitar 2 part of the intro:
E|--------------------------|
B|--------------------------|
G|-666x---------------------|
D|-666x-666x-888x-444x------|4x
A|-444x-666x-888x-444x------|
E|------444x-666x-222x------|
After the first time through the chorus, you go back to the verse for verse 2. After the second time through the chorus, you go to the bridge which is jsut about the same thing as the intro
Bridge Fig. A
E|---------------------------|
B|---------------------------|
G|-666x----------------------|
D|-666x-666x-888x-444x!------|2x
A|-444x-666x-888x-444x!------|
E|------444x-666x-222x!------|
then
Bridge Fig B
Guitar 1
E|--------------------------------|
B|--------------------------------|
G|-6------------3-----------------| 
D|-6-3h4-66-3-1-3-3h4-44-3-1------|
A|-4-----66-----1-----44----------|
E|-------44-----------22----------|
Guitar 2
E|--------------------------------|
B|--------------------------------|
G|----------6-5-------------------|
D|----------6-5-8888x--4444x------|
A|----------4-3-8888x--4444x------|
E|--------------6666x--2222x------|
then back to Bridge Fig. A for 3x
followed by Chorus
The outro is pretty much all bass w/ a little soft picking on the g string around the 5th fret. I'm not sure if this is exact, but it's pretty close
E|-------------------------------------------------------------|
B|-------------------------------------------------------------|
G|-6666666666658886-66656665666566666665666566658885-----6~----|
D|---------------------------------------------------4-6-6~----|
A|---------------------------------------------------4-6-4~----|
E|---------------------------------------------------2-4-------|